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March 1, 2013Journal of Superhard Materials

Modification of mechanical properties of TiN/Al2O3 and TiN/Cr/Al2O3 coatings using low-energy high-current electron beams

A.D. Pogrebnjak Yu. A. Kravchenko

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Abstract

The structure, elemental and phase compositions of the TiN/Al 2 O 3 and TiN/Cr/Al 2 O 3 hybrid coatings have been studied. It has been shown that an electron-beam treatment of hybrid coating surface makes it possible to increase the protective layer microhardness from 8.3 to 14.4 GPa. It has been found that the increase of hybrid coating hardness is a result of an increase of the material density and recovery of the α-phase of Al 2 O 3 in the protective layer composition due to the thermal activation of the surface.

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Cite This Study

Pogrebnjak et al. (2013) studied this question.

synapsesocial.com/papers/6aa1236eb6e053eb128d40da https://doi.org/10.3103/s1063457613020068

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